﻿//-----------------------------------------------------------------------
// <copyright file="App.xaml.cs" company="FIT VUT">
//     Copyright (c) FIT VUT. All rights are reserved.
// </copyright>
//-----------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;

namespace BookCaching
{
    /// <summary>
    /// This class serves as the entry point of the application.
    /// </summary>
    public partial class App : Application
    {
        #region Private Fields
        // Avoid double-initialization
        private bool phoneApplicationInitialized = false;
        #endregion

        /// <summary>
        /// Initializes a new instance of the <see cref="App"/> class.
        /// </summary>
        public App()
        {
            // Global handler for uncaught exceptions. 
            this.UnhandledException += this.Application_UnhandledException;

            Resources.Add("CurrentSettings", BookCaching.Settings.CurrentSettings.Instance);
            BookCaching.Settings.CurrentSettings.Instance.Initialize();

            // Standard Silverlight initialization
            this.InitializeComponent();

            // Phone-specific initialization
            this.InitializePhoneApplication();

            // Show graphics profiling information while debugging.
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // Display the current frame rate counters.
                Application.Current.Host.Settings.EnableFrameRateCounter = false;

                PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;
            }
        }

        /// <summary>
        /// Gets the  root frame of the Phone Application.
        /// </summary>
        public PhoneApplicationFrame RootFrame { get; private set; }        

        // Code to execute when the application is launching (eg, from Start)
        // This code will not execute when the application is reactivated
        private void Application_Launching(object sender, LaunchingEventArgs e)
        {
        }

        // Code to execute when the application is activated (brought to foreground)
        // This code will not execute when the application is first launched
        private void Application_Activated(object sender, ActivatedEventArgs e)
        {
        }

        // Code to execute when the application is deactivated (sent to background)
        // This code will not execute when the application is closing
        private void Application_Deactivated(object sender, DeactivatedEventArgs e)
        {
        }

        // Code to execute when the application is closing (eg, user hit Back)
        // This code will not execute when the application is deactivated
        private void Application_Closing(object sender, ClosingEventArgs e)
        {
        }

        // Code to execute if a navigation fails
        private void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)
        {
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // A navigation has failed; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }

        // Code to execute on Unhandled Exceptions
        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
        {
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // An unhandled exception has occurred; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }

        #region Phone application initialization        

        // Do not add any additional code to this method
        private void InitializePhoneApplication()
        {
            if (this.phoneApplicationInitialized)
            {
                return;
            }

            // Create the frame but don't set it as RootVisual yet; this allows the splash
            // screen to remain active until the application is ready to render.            
            this.RootFrame = new Microsoft.Phone.Controls.TransitionFrame();
            this.RootFrame.Navigated += this.CompleteInitializePhoneApplication;

            // Handle navigation failures
            this.RootFrame.NavigationFailed += this.RootFrame_NavigationFailed;

            // Ensure we don't initialize again
            this.phoneApplicationInitialized = true;            
        }

        // Do not add any additional code to this method
        private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)
        {
            // Set the root visual to allow the application to render
            if (this.RootVisual != this.RootFrame)
            {
                this.RootVisual = this.RootFrame;
            }

            // Remove this handler since it is no longer needed
            this.RootFrame.Navigated -= this.CompleteInitializePhoneApplication;            
        }

        #endregion
    }
}